ul {
    background-color: #333333;
    padding: 0;
    margin: 0;
    overflow: hidden;
    width: 150px;

    list-style-type: none;
}

li a:hover {
    background-color: #111111;
}

li a {
    display: block;
    padding: 16px 18px;
    text-decoration: none;
    color: white;
    text-align: center;
}

